Best Celebrity Baby Bumps

Model Alessandra Ambrosio arrives at the 20th Annual Elton John AIDS Foundation's Oscar Viewing Party held at West Hollywood Park on February 26, 2012 in West Hollywood, California. (Credit: Frederick M. Brown/Getty Images)

Alex Borstein

Actress Alex Borstein arrives at the Premiere of Universal Pictures' "Ted" sponsored in part by AXE Hair at Grauman's Chinese Theatre on June 21, 2012 in Hollywood, California. (Credit: Kevin Winter/Getty Images)

U.S. actress Angelina Jolie poses during a photocall for U.S. actor and director Clint Eastwood's film "The Exchange" at the 61st Cannes International Film Festival on May 20, 2008 in Cannes, southern France. (Credit: Valerie Macon/Getty Images)

Singer Beyoncé hosts the screening of "Live at Roseland: The Elements of 4" at the Paris Theatre on November 20, 2011 in New York City. (Credit: Jemal Countess/Getty Images)

Holly Madison

Model and television personality Holly Madison arrives at the premiere of Film District's "Parker" at Planet Hollywood Resort & Casino on January 24, 2013 in Las Vegas, Nevada. (Credit: David Becker/Getty Images)

Ivanka Trump

Ivanka Trump attends "The Celebrity Apprentice" Season 4 Finale at Trump SoHo on May 22, 2011 in New York City. (Credit: Neilson Barnard/Getty Images)

Actress/singer Jennifer Lopez arrives at "Movies Rock" A Celebration Of Music In Film held at the Kodak Theatre on December 2, 2007 in Hollywood, California. (Credit: Frederick M. Brown/Getty Images)

Jessica Alba

Actress Jessica Alba arrives at "Spy Kids: All The Time In The World 4D" Los Angeles premiere at the Regal Cinemas L.A. Live on July 31, 2011 in Los Angeles, California. (Credit: Jason Merritt/Getty Images)

Jessica Simpson

Recording artist/actress Jessica Simpson attends the 25th Annual Footwear News Achievement Awards at the Museum of Modern Art on November 29, 2011 in New York City. (Credit: Mike Coppola/Getty Images)

Lilly Allen attends the British Fashion Awards 2012 at The Savoy Hotel on November 27, 2012 in London, England. (Credit: Ian Gavan/Getty Images)

Maya Rudolph

Actress Maya Rudolph arrives at the Premiere of Universal Pictures' "Bridesmaids" at the Mann Village Theatre on April 28, 2011 in Westwood, California. (Credit: Michael Buckner/Getty Images)

Natalie Portman

Actress Natalie Portman arrives at the Spirit Awards in Santa Monica, California on February 26, 2011.This is the 26th annual Spirit Awards, Film Independent’s event which honors films made by filmmakers who embody independence and originality. (Credit: Gabriel Bouys/Getty Images)

Nicole Kidman

Actress Nicole Kidman arrives at the 43rd annual Academy Of Country Music Awards held at the MGM Grand Garden Arena on May 18, 2008 in Las Vegas, Nevada. (Credit: Charley Gallay/Getty Images)